| Mathbox for Zhi Wang |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > Mathboxes > oppcthin | Structured version Visualization version GIF version | ||
| Description: The opposite category of a thin category is thin. (Contributed by Zhi Wang, 29-Sep-2024.) |
| Ref | Expression |
|---|---|
| oppcthin.o | ⊢ 𝑂 = (oppCat‘𝐶) |
| Ref | Expression |
|---|---|
| oppcthin | ⊢ (𝐶 ∈ ThinCat → 𝑂 ∈ ThinCat) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | oppcthin.o | . . . 4 ⊢ 𝑂 = (oppCat‘𝐶) | |
| 2 | eqid 2734 | . . . 4 ⊢ (Base‘𝐶) = (Base‘𝐶) | |
| 3 | 1, 2 | oppcbas 17731 | . . 3 ⊢ (Base‘𝐶) = (Base‘𝑂) |
| 4 | 3 | a1i 11 | . 2 ⊢ (𝐶 ∈ ThinCat → (Base‘𝐶) = (Base‘𝑂)) |
| 5 | eqidd 2735 | . 2 ⊢ (𝐶 ∈ ThinCat → (Hom ‘𝑂) = (Hom ‘𝑂)) | |
| 6 | simpl 482 | . . . 4 ⊢ ((𝐶 ∈ ThinCat ∧ (𝑥 ∈ (Base‘𝐶) ∧ 𝑦 ∈ (Base‘𝐶))) → 𝐶 ∈ ThinCat) | |
| 7 | simprr 772 | . . . 4 ⊢ ((𝐶 ∈ ThinCat ∧ (𝑥 ∈ (Base‘𝐶) ∧ 𝑦 ∈ (Base‘𝐶))) → 𝑦 ∈ (Base‘𝐶)) | |
| 8 | simprl 770 | . . . 4 ⊢ ((𝐶 ∈ ThinCat ∧ (𝑥 ∈ (Base‘𝐶) ∧ 𝑦 ∈ (Base‘𝐶))) → 𝑥 ∈ (Base‘𝐶)) | |
| 9 | eqid 2734 | . . . 4 ⊢ (Hom ‘𝐶) = (Hom ‘𝐶) | |
| 10 | 6, 7, 8, 2, 9 | thincmo 49031 | . . 3 ⊢ ((𝐶 ∈ ThinCat ∧ (𝑥 ∈ (Base‘𝐶) ∧ 𝑦 ∈ (Base‘𝐶))) → ∃*𝑓 𝑓 ∈ (𝑦(Hom ‘𝐶)𝑥)) |
| 11 | 9, 1 | oppchom 17728 | . . . . 5 ⊢ (𝑥(Hom ‘𝑂)𝑦) = (𝑦(Hom ‘𝐶)𝑥) |
| 12 | 11 | eleq2i 2825 | . . . 4 ⊢ (𝑓 ∈ (𝑥(Hom ‘𝑂)𝑦) ↔ 𝑓 ∈ (𝑦(Hom ‘𝐶)𝑥)) |
| 13 | 12 | mobii 2546 | . . 3 ⊢ (∃*𝑓 𝑓 ∈ (𝑥(Hom ‘𝑂)𝑦) ↔ ∃*𝑓 𝑓 ∈ (𝑦(Hom ‘𝐶)𝑥)) |
| 14 | 10, 13 | sylibr 234 | . 2 ⊢ ((𝐶 ∈ ThinCat ∧ (𝑥 ∈ (Base‘𝐶) ∧ 𝑦 ∈ (Base‘𝐶))) → ∃*𝑓 𝑓 ∈ (𝑥(Hom ‘𝑂)𝑦)) |
| 15 | thincc 49025 | . . 3 ⊢ (𝐶 ∈ ThinCat → 𝐶 ∈ Cat) | |
| 16 | 1 | oppccat 17735 | . . 3 ⊢ (𝐶 ∈ Cat → 𝑂 ∈ Cat) |
| 17 | 15, 16 | syl 17 | . 2 ⊢ (𝐶 ∈ ThinCat → 𝑂 ∈ Cat) |
| 18 | 4, 5, 14, 17 | isthincd 49039 | 1 ⊢ (𝐶 ∈ ThinCat → 𝑂 ∈ ThinCat) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 395 = wceq 1539 ∈ wcel 2107 ∃*wmo 2536 ‘cfv 6540 (class class class)co 7412 Basecbs 17228 Hom chom 17283 Catccat 17677 oppCatcoppc 17724 ThinCatcthinc 49020 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1794 ax-4 1808 ax-5 1909 ax-6 1966 ax-7 2006 ax-8 2109 ax-9 2117 ax-10 2140 ax-11 2156 ax-12 2176 ax-ext 2706 ax-rep 5259 ax-sep 5276 ax-nul 5286 ax-pow 5345 ax-pr 5412 ax-un 7736 ax-cnex 11192 ax-resscn 11193 ax-1cn 11194 ax-icn 11195 ax-addcl 11196 ax-addrcl 11197 ax-mulcl 11198 ax-mulrcl 11199 ax-mulcom 11200 ax-addass 11201 ax-mulass 11202 ax-distr 11203 ax-i2m1 11204 ax-1ne0 11205 ax-1rid 11206 ax-rnegex 11207 ax-rrecex 11208 ax-cnre 11209 ax-pre-lttri 11210 ax-pre-lttrn 11211 ax-pre-ltadd 11212 ax-pre-mulgt0 11213 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1542 df-fal 1552 df-ex 1779 df-nf 1783 df-sb 2064 df-mo 2538 df-eu 2567 df-clab 2713 df-cleq 2726 df-clel 2808 df-nfc 2884 df-ne 2932 df-nel 3036 df-ral 3051 df-rex 3060 df-rmo 3363 df-reu 3364 df-rab 3420 df-v 3465 df-sbc 3771 df-csb 3880 df-dif 3934 df-un 3936 df-in 3938 df-ss 3948 df-pss 3951 df-nul 4314 df-if 4506 df-pw 4582 df-sn 4607 df-pr 4609 df-op 4613 df-uni 4888 df-iun 4973 df-br 5124 df-opab 5186 df-mpt 5206 df-tr 5240 df-id 5558 df-eprel 5564 df-po 5572 df-so 5573 df-fr 5617 df-we 5619 df-xp 5671 df-rel 5672 df-cnv 5673 df-co 5674 df-dm 5675 df-rn 5676 df-res 5677 df-ima 5678 df-pred 6301 df-ord 6366 df-on 6367 df-lim 6368 df-suc 6369 df-iota 6493 df-fun 6542 df-fn 6543 df-f 6544 df-f1 6545 df-fo 6546 df-f1o 6547 df-fv 6548 df-riota 7369 df-ov 7415 df-oprab 7416 df-mpo 7417 df-om 7869 df-1st 7995 df-2nd 7996 df-tpos 8232 df-frecs 8287 df-wrecs 8318 df-recs 8392 df-rdg 8431 df-er 8726 df-en 8967 df-dom 8968 df-sdom 8969 df-pnf 11278 df-mnf 11279 df-xr 11280 df-ltxr 11281 df-le 11282 df-sub 11475 df-neg 11476 df-nn 12248 df-2 12310 df-3 12311 df-4 12312 df-5 12313 df-6 12314 df-7 12315 df-8 12316 df-9 12317 df-n0 12509 df-z 12596 df-dec 12716 df-sets 17182 df-slot 17200 df-ndx 17212 df-base 17229 df-hom 17296 df-cco 17297 df-cat 17681 df-cid 17682 df-oppc 17725 df-thinc 49021 |
| This theorem is referenced by: oduoppcciso 49147 |
| Copyright terms: Public domain | W3C validator |